On Tuesday, Lovato posted an un-retouched photo of herself to give fans a behind-the-scenes look at her new shoot forAllure magazine's "clean" issue. In the photo, Lovato is stripped down to her underwear — though still rocking a red lip.

"Posting a #nophotoshop pic because I'm proud to show my body the way it naturally is.. (And there was great lighting...)," Lovato wrote in the caption.

Lovato's message of confidence has taken center stage during the past year, from the Vanity Fair shoot to her participation in #NoMakeupMondays and the release of her most recent album.

"I've never felt as confident in my skin as I do today," Lovato told Allure. "A year ago, on tour, almost every inch of my body was covered by clothing...Once I started feeling better about myself, I felt better about showing more skin."